docs: add YoMo to list of projects in README

[fanweixiao]

add YoMo to list of projects using quic-go in README

[codecov]

Codecov Report

Base: 85.66% // Head: 85.66% // No change to project coverage 👍

Coverage data is based on head (8a2cf5a) compared to base (dd521c0).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3513   +/-   ##
=======================================
  Coverage   85.66%   85.66%           
=======================================
  Files         136      136           
  Lines       10004    10004           
=======================================
  Hits         8569     8569           
  Misses       1055     1055           
  Partials      380      380           

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